From nobody Mon Feb 9 12:45:35 2026 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 2F2C330FF2B for ; Mon, 12 Jan 2026 09:15:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768209353; cv=none; b=axQr1pwpWTPuJL4cCDKvae7QPKqoPc1QCg3ZljSqjTHIdngg7ApQfeoo3ScJj2z9x9rwM8VGzKD5AMlikH/ids5TlyK4oC1+4qp0Xg8fzqYRE2u+HfUHppBcZ2Q6vdYbSM5In4h21BJYbX5Tl2VwlU3C8q1IZdGxUcmU4x7od18= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768209353; c=relaxed/simple; bh=kvEvk0hVid6AXX1qULTCy6myWHbDDqY0Oj86lkq6bjc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=cy5ZbJWHwmQOcxpGEdeGDmuXSq10wf1QT2grCki1cRVCPINvbVULieSASLw1/KbfAANXWtoshNjzLcwjQ67LSg520C/QkE1h+edEzDzL/bgTlP4QhwNp0GSoB7RGtUTHdprPmcFFc5RfD9rgC0fTg31gznhf3xZIfMMGf0/yteU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [113.200.148.30]) by gateway (Coremail) with SMTP id _____8CxrsPCu2RpmdEHAA--.25598S3; Mon, 12 Jan 2026 17:15:46 +0800 (CST) Received: from linux.localdomain (unknown [113.200.148.30]) by front1 (Coremail) with SMTP id qMiowJAxGMHBu2RpMOEaAA--.41928S2; Mon, 12 Jan 2026 17:15:46 +0800 (CST) From: Tiezhu Yang To: Huacai Chen Cc: loongarch@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH] Revert "LoongArch: Remove unnecessary checks for ORC unwinder" Date: Mon, 12 Jan 2026 17:15:31 +0800 Message-ID: <20260112091531.12735-1-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.42.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJAxGMHBu2RpMOEaAA--.41928S2 X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoW7Kr1xWr13Xw13WF4UZr1xtFc_yoW8XFW8pF ZxC3WYgr4xK348W39xJryavr98Ar97t3W2gFZrKr95uF1jqw13Cw1a934UuF1Dtry8Wa10 9Fn5trZ0kanFy3XCm3ZEXasCq-sJn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUkYb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Jr0_JF4l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Jr0_Gr1l84ACjcxK6I8E87Iv67AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6r4UJVWxJr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqjxCEc2xF0cIa020Ex4CE44I27w Aqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE 14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCF04k20xvY0x 0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E 7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jrv_JF1lIxkGc2Ij64vIr41lIxAIcV C0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr0_Gr1lIxAIcVCF 04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7 CjxVAFwI0_Jr0_GrUvcSsGvfC2KfnxnUUI43ZEXa7IU8xuctUUUUU== Content-Type: text/plain; charset="utf-8" This reverts commit 4cd641a79e69270a062777f64a0dd330abb9044a. The system can not boot normally with the latest kernel 6.19-rc5 under different configs, commit 4cd641a79e69 ("LoongArch: Remove unnecessary checks for ORC unwinder") is the first bad commit since 6.19-rc4, just revert it first before finding the root cause. Signed-off-by: Tiezhu Yang --- arch/loongarch/kernel/unwind_orc.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/arch/loongarch/kernel/unwind_orc.c b/arch/loongarch/kernel/unw= ind_orc.c index 8a6e3429a860..710f82d73797 100644 --- a/arch/loongarch/kernel/unwind_orc.c +++ b/arch/loongarch/kernel/unwind_orc.c @@ -352,6 +352,12 @@ static inline unsigned long bt_address(unsigned long r= a) { extern unsigned long eentry; =20 + if (__kernel_text_address(ra)) + return ra; + + if (__module_text_address(ra)) + return ra; + if (ra >=3D eentry && ra < eentry + EXCCODE_INT_END * VECSIZE) { unsigned long func; unsigned long type =3D (ra - eentry) / VECSIZE; @@ -369,13 +375,10 @@ static inline unsigned long bt_address(unsigned long = ra) break; } =20 - ra =3D func + offset; + return func + offset; } =20 - if (__kernel_text_address(ra)) - return ra; - - return 0; + return ra; } =20 bool unwind_next_frame(struct unwind_state *state) @@ -498,6 +501,9 @@ bool unwind_next_frame(struct unwind_state *state) goto err; } =20 + if (!__kernel_text_address(state->pc)) + goto err; + return true; =20 err: --=20 2.42.0